A Simple Law for Ice-Shelf Calving

作者:Alley Richard B*; Horgan Huw J; Joughin Ian; Cuffey Kurt M; Dupont Todd K; Parizek Byron R; Anandakrishnan Sridhar; Bassis Jeremy
来源:Science, 2008, 322(5906): 1344-1344.
DOI:10.1126/science.1162543

摘要

<jats:p>A major problem for ice-sheet models is that no physically based law for the calving process has been established. Comparison across a diverse set of ice shelves demonstrates that iceberg calving increases with the along-flow spreading rate of a shelf. This relation suggests that frictional buttressing loss, which increases spreading, also leads to shelf retreat, a process known to accelerate ice-sheet flow and contribute to sea-level rise.</jats:p>

  • 出版日期2008-11-28